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Animal Sciences

Kansas Agricultural Experiment Station Research Reports

2001

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A Comparison Of Different Particle Size Analysis Techniques (2001), A L. Baldridge, T L. Stainbrook, J C. Woodworth, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 2001

A Comparison Of Different Particle Size Analysis Techniques (2001), A L. Baldridge, T L. Stainbrook, J C. Woodworth, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

In this study, we compared different methods of testing particle size of ground corn. Forty-four corn samples were analyzed for particle size with a Ro-Tap tester equipped with a 13-sieve stack (53 to 3,350 :m tyler mesh screens). Mean particle size of the 44 samples ranged from 422 to 1,143 :m. These samples were then analyzed by placing 280 g on a #14 sieve (1,400 :m). The sieve was shaken by hand as the manufacturer recommended (one-sieve method). In a second procedure, samples were analyzed by placing 50 g of corn on a stack of three sieves: US #12 (1700 …

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Influence Of Increasing Niacin On Growth Performance And Carcass Characteristics Of Grow-Finish Pigs Reared In A Commercial Environment (2001), D E. Real, E Alonso, Jim L. Nelssen, John A. Unruh, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2001

Influence Of Increasing Niacin On Growth Performance And Carcass Characteristics Of Grow-Finish Pigs Reared In A Commercial Environment (2001), D E. Real, E Alonso, Jim L. Nelssen, John A. Unruh, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

There were 1,243 growing pigs used to determine the effects of increasing dietary niacin on growth performance and meat quality of pigs reared in a commercial environment. The dietary treatments consisted of a control diet (no added niacin) or the control diet with 12.5, 25, 50, 100, or 500 g/ton of added niacin. Increasing dietary niacin decreased ADFI and improved F:G for the overall study. Increasing dietary niacin improved carcass shrink, ultimate pH, drip loss percentage, and loin color. Increasing dietary niacin up to 50 ppm improved feed efficiency, but higher concentrations (up to 50 ppm) decreased carcass shrink, and …

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The Optimal Threonine:Lysine Ratio To Maximize Growth Performance Of Nursery Pigs (2001), B W. James, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2001

The Optimal Threonine:Lysine Ratio To Maximize Growth Performance Of Nursery Pigs (2001), B W. James, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 210 pigs (initially 18.2 lb and 25 d of age) were used in a 21-d growth assay. The seven treatments consisted of a basal diet (14.1% CP) with increasing levels of threonine (45, 50, 55, 60, 65, and 70% of 1.07% apparent digestible lysine) and a negative control containing 0.97% lysine. Increasing dietary threonine improved feed efficiency; however, there was no improvement in growth performance between pigs fed 0.97 and 1.07% apparent digestible lysine. Therefore, these results suggest the requirement for apparent digestible threonine is approximately 60% of lysine for 18- to 40-lb pigs.; Swine Day, Manhattan, …

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The Optimal Ratio Of Apparent Digestible Valine To Lysine To Maximize Growth Performance Of The Nursery Pig (2001), B W. James, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2001

The Optimal Ratio Of Apparent Digestible Valine To Lysine To Maximize Growth Performance Of The Nursery Pig (2001), B W. James, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 210 nursery pigs (initially 19.6 lb and approximately 28 d of age) were used in a 21-d growth assay to determine the optimal ratio of valine to lysine to maximize growth performance. The seven treatments consisted of a basal diet (14.2% CP; 1.07% apparent digestible lysine) with increasing ratios of valine:lysine (48, 53, 58, 63, 69, and 74%) and a negative control containing 0.97% lysine and 0.79% apparent digestible valine. Results indicate that the optimal apparent digestible valine:lysine ratio for the nursery pig is 58 and 64% for ADG and F/G, respectively. Therefore, most typical nursery diets …

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Influence Of Dietary Niacin On Starter Pig Performance (2001), D E. Real, B W. James, E Alonso, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2001

Influence Of Dietary Niacin On Starter Pig Performance (2001), D E. Real, B W. James, E Alonso, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted using 415 weanling pigs (175 in Exp. 1, 240 in Exp. 2) to determine the influence of dietary niacin inclusion on starter pig performance. Pigs were fed a control diet with no added niacin or the control diet with 25, 50, 75 or 100 g/ton of added niacin. From d 0 to 8, increasing dietary niacin increased ADG and ADFI up to 50 g/ton of added niacin. Overall, pigs fed increasing levels of niacin tended to have improved ADG. These results suggest feeding 50 g/ton of added dietary niacin to complex nursery pig diets to improve …

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Evaluation Of Irradiation And Termin-8® Addition To Spray-Dried Animal Plasma, Base Mix And/Or Whole Diet On Growth Performance Of Nursery Pigs (2001), R E. Musser, W N. Cannon, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2001

Evaluation Of Irradiation And Termin-8® Addition To Spray-Dried Animal Plasma, Base Mix And/Or Whole Diet On Growth Performance Of Nursery Pigs (2001), R E. Musser, W N. Cannon, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to evaluate the effects of irradiation of spray-dried animal plasma and Termin-8 treatment to spray-dried animal plasma, base mix (specialty protein products, milk products, ground oat groats, soy flour, flow agent, vitamins, and minerals), or whole diet on nursery pig performance. Overall (d 0 to 14) in Exp. 1, pigs fed diets containing irradiated plasma had increased ADG and pigs fed Termin-8® treated plasma had increased ADG and ADFI compared to pigs fed diets with regular plasma or whole diets (containing either regular or irradiated plasma) treated with Termin-8. No differences in F/G were observed among …

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Effect Of Source And Irradiation Of Spray-Dried Animal Plasma On Nursery Pig Performance In A Commercial Facility (2001), Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2001

Effect Of Source And Irradiation Of Spray-Dried Animal Plasma On Nursery Pig Performance In A Commercial Facility (2001), Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Weanling pigs (1,008; initially 13.5 lb and 18 ± 2 d of age) were used in a 13-d growth assay to determine the effects of irradiation of two different plasma sources on growth performance. From d 0 to 5 postweaning, pigs fed DuCoa® plasma had improved ADG and F/G compared to pigs fed AP 920 (American Proteins, Inc.). However, from d 5 to 13, pigs fed AP 920 had improved ADG and F/G compared to pigs fed DuCoa plasma. Overall, no differences in ADG, ADFI, or F/G were detected. In addition, no differences in ADG, ADFI, or F/G were detected …

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Influence Of Freestall Building Orientation On Comfort Of Lactating Dairy Cattle During Summer Heat Stress (2001), John F. Smith, Joseph P. Harner, Michael J. Brouk Jan 2001

Influence Of Freestall Building Orientation On Comfort Of Lactating Dairy Cattle During Summer Heat Stress (2001), John F. Smith, Joseph P. Harner, Michael J. Brouk

Kansas Agricultural Experiment Station Research Reports

A trial was conducted during the summer of 2000 to evaluate the effect of freestall building orientation"”east-west vs. northsouth"” on respiration rates of lactating dairy cows, temperature-humidity index (THI) in the barns, barn temperature, and barn humidity. Differences between ambient and barn temperature and THI were higher in east-west vs. north-south orientated barns. Respiration rates were higher in north-south than in east-west orientated structures. The magnitude of differences between barn and ambient temperatures and THI did not fully explain differences in respiration rates between north-south and east-west orientated barns. Other factors such as solar radiation, airflow, and animal stress may …

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Fertility After Synchronization Of Estrus In Dairy Heifers Using Gnrh, Pgf2Α, And Progesterone (Cidr) (2001), A.M. Richardson, B.A. Hensley, Jeffrey S. Stevenson Jan 2001

Fertility After Synchronization Of Estrus In Dairy Heifers Using Gnrh, Pgf2Α, And Progesterone (Cidr) (2001), A.M. Richardson, B.A. Hensley, Jeffrey S. Stevenson

Kansas Agricultural Experiment Station Research Reports

Our objective was to determine fertility of heifers after synchronization of estrus using PGF2", preceded by progesterone, GnRH, or both. Dairy heifers (n = 246) were assigned randomly to three treatments: 1) 50 :g of GnRH given 6 d before 25 mg of PGF2 (d "“1) plus a used intravaginal progesteronereleasing insert (CIDR-B; d "“7 to 0; CIDR+GnRH); 2) same as CIDR+GnRH without the GnRH (CIDR); and 3) same as CIDR+GnRH without the used CIDR (GnRH). All heifers were fitted with Heat- Watch® patches and characteristics of estrus examined before AI included duration of estrus, number of standing events, and …

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Management Of Natural Service Bulls On Large Dairies (2001), P.J. Chenoweth, John F. Smith Jan 2001

Management Of Natural Service Bulls On Large Dairies (2001), P.J. Chenoweth, John F. Smith

Kansas Agricultural Experiment Station Research Reports

Natural service (NS) bulls are widely used on large dairy farms despite the wellproven genetic progress achievable through AI. Producers may choose to use NS bulls for a variety of reasons that are discussed below. In this presentation, problems encountered with the use of NS bulls on a large dairy in Kansas are described in relation to reduced reproductive performance on that dairy. Lameness in bulls was considered to be a major contributing factor to reduced herd reproductive performance, with seminal vesiculitis also possibly playing a role. Possible contributing factors for the occurrence of these problems in the bull population …

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Genetic Relationships Among Breeding Soundness Traits In Yearling Bulls (2001), R.A. Christmas, M.F. Spire, J.M. Sargeant, Sharon K. Tucker, Daniel W. Moser Jan 2001

Genetic Relationships Among Breeding Soundness Traits In Yearling Bulls (2001), R.A. Christmas, M.F. Spire, J.M. Sargeant, Sharon K. Tucker, Daniel W. Moser

Kansas Agricultural Experiment Station Research Reports

Breeding soundness examination data on over 1,200 yearling Angus bulls were analyzed to determine heritability of and genetic relationships among breeding soundness traits. Breeding soundness exam procedures were consistent with those currently recommended by the Society of Theriogenology. Presence of seminal white blood cells (an indicator of seminal vesiculitis), penile warts and persistent frenulums were noted and recorded. Data were adjusted for age at measurement and contemporary group effects. Heritability was high for scrotal circumference, moderate for percentage of abnormalities, low for sperm motility, and near zero for semen white blood cells, persistent frenulum, and penile warts. Genetic correlations between …

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Carcass Merit Project: Development Of Epds And Genetic Marker Validation (2001), E.J. Pollak, R.D. Green, J. Taylor, S. Davis, T. Holm, S. Koontz, C. Gill, Daniel W. Moser, E.A. Westcott, Michael E. Dikeman Jan 2001

Carcass Merit Project: Development Of Epds And Genetic Marker Validation (2001), E.J. Pollak, R.D. Green, J. Taylor, S. Davis, T. Holm, S. Koontz, C. Gill, Daniel W. Moser, E.A. Westcott, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Carcass and Warner-Bratzler shear force data on strip loin steaks have been obtained on over 4,200 cattle from contemporary progeny groups from the most widely used sires in 15 beef cattle breed associations (16 breeds). Trained sensory panel evaluations have been conducted on over 1,500 strip loin steaks from a sample of contemporary progeny groups from sires included in the QTL (quantitative trait loci) validation component of the project. One breed association has published Warner-Bratzler shear force Expected Progeny Differences (EPDs) for 57 sires of two breeds. DNA analyses and screening have been completed for 11 QTL on eight sires …

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Motivation Factors For Beef Processor-Producer Linkages (2001), J.D. Lawrence, M.L. Hayenga, Ted C. Schroeder Jan 2001

Motivation Factors For Beef Processor-Producer Linkages (2001), J.D. Lawrence, M.L. Hayenga, Ted C. Schroeder

Kansas Agricultural Experiment Station Research Reports

A survey was conducted of the 15 largest beef processors to identify the mix of procurement practices being used and to understand reasons motivating recent processorproducer linkages. Processors are shifting away from cash-market live, fed-cattle trade, which represents only 36% of cattle procured by survey respondents in 1999. Processorowned cattle feeding represents only approximately 5%, where it has been for more than a decade. Various other forms of pricing such as carcass weight, grid, and formula represented the largest portion of purchases at 49%. Processors indicated the two most important reasons they get involved in contracts and marketing agreements with …

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Performance Of Beef Heifers Limit-Fed Growing Diets Containing Alfalfa Hay And Wet Corn Gluten Feed (2001), Sean P. Montgomery, J.J. Sindt, T.B. Farran, N.J. Pike, C.M. Coetzer, H.J. Labrune, A.M. Trater, R.D. Hunter, R.A. Stock, James S. Drouillard Jan 2001

Performance Of Beef Heifers Limit-Fed Growing Diets Containing Alfalfa Hay And Wet Corn Gluten Feed (2001), Sean P. Montgomery, J.J. Sindt, T.B. Farran, N.J. Pike, C.M. Coetzer, H.J. Labrune, A.M. Trater, R.D. Hunter, R.A. Stock, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Three hundred thirty-nine crossbred beef heifers were used in a 99-day growing study to identify optimum combinations of alfalfa hay and wet corn gluten feed (WCGF) in limit-fed growing diets. Diets contained 10, 20, or 30% ground alfalfa hay, and 0, 40, or 68% Sweet Bran® WCGF (dry basis) in a 3 x 3 factorial arrangement of treatments. An interaction occurred (P<0.05) between level of alfalfa hay and level of WCGF for both average daily gain and feed efficiency. Increasing the levels of alfalfa hay or WCGF reduced cattle performance, with the exception of the 30% alfalfa hay and 40% WCGF diet, which supported average daily gains similar (P>0.10) to diets containing 20 or 30% alfalfa hay and no WCGF. Feed efficiencies for the 30% alfalfa hay and 40% WCGF diet were better (P<0.05) than the diet containing 30% alfalfa hay and no WCGF. Dry matter intake as measured two hours after feeding increased linearly (P<0.01) with increasing levels of alfalfa hay, and decreased linearly (P<0.01) with increasing levels of WCGF. This study suggests that including WCGF at 40% of the diet (dry basis) can effectively replace steam-flaked corn in limit-fed diets containing 20 or 30% alfalfa hay.

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Effect Of Cooked Molasses Tubs On Performance And Health Of Newly Received Stocker Calves (2001), S.I. Paisley, Gerald L. Stokka, F.K. Brazle Jan 2001

Effect Of Cooked Molasses Tubs On Performance And Health Of Newly Received Stocker Calves (2001), S.I. Paisley, Gerald L. Stokka, F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Eight paired comparisons conducted at three field sites with 1059 newly-received lightweight stocker calves were used to determine the effect of free-choice cooked molasses tubs designed for receiving cattle on 28-day receiving period performance, percentage of cattle treated for respiratory disease, and death loss. At all sites, cattle received similar management with the exception that cooked molasses tubs were added to half of the pens immediately following initial processing. Weight gains were similar (P=0.36) for cattle with or without access to tubs (43 and 38 lb, respectively). The addition of tubs also did not affect the number of cattle treated …

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Addition Of Urea To Finishing Cattle Diets Containing Steam-Flaked Corn And Wet Corn Gluten Feed (2001), Sean P. Montgomery, J.J. Sindt, T.B. Farran, N.J. Pike, C.M. Coetzer, H.J. Labrune, A.M. Trater, R.D. Hunter, R.A. Stock, James S. Drouillard Jan 2001

Addition Of Urea To Finishing Cattle Diets Containing Steam-Flaked Corn And Wet Corn Gluten Feed (2001), Sean P. Montgomery, J.J. Sindt, T.B. Farran, N.J. Pike, C.M. Coetzer, H.J. Labrune, A.M. Trater, R.D. Hunter, R.A. Stock, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Three hundred thirty-nine crossbred beef heifers were used in a 74-day finishing study to evaluate effects of adding 0.5% urea to finishing diets containing steam-flaked corn and 34% (dry basis) Sweet Bran® wet corn gluten feed (WCGF). Diets were fed once daily ad libitum. Urea addition tended (P<0.06) to increase finishing average daily gain, to improve (P<0.12) feed efficiency, and to increase (P<0.06) fat thickness. Heifers fed urea had a lower percentage (P<0.03) of carcasses grading USDA Choice. This study suggests that finishing diets containing a combination of steam-flaked corn and WCGF may benefit from addition of urea as a source of supplemental ruminally available nitrogen.

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Influence Of Different Equipment Protocols On Particle Size Determination Of Ground Corn (2001), J C. Woodworth, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz Jan 2001

Influence Of Different Equipment Protocols On Particle Size Determination Of Ground Corn (2001), J C. Woodworth, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the influence of the tapping bar and sieve agitators (balls and brushes) on determining mean particle size and standard deviation of ground corn. Tapping bar had no influence (P>0.10) on mean and standard deviation; however the presence of balls and brushes on sieves decreased (P<0.002) mean particle size and increased (P<0.0001) standard deviation. These results suggest that balls and brushes should be used when determining mean particle size to assist particle flowability. More research should be conducted to determine the effects of the tapping bar and sieve agitators over a wider range of particle sizes.; Swine Day, Manhattan, KS, November 15, 2001

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Influence Of Low-Level Fall Supplementation With A Self-Fed, High-Protein Supplement And Level Of Winter Supplementation On Performance Of Beef Cows Grazing Tallgrass-Prairie Range (2001), T.A. Wickersham, R.C. Cochran, D.V. Dhuyvetter, C.G. Farmer, David M. Grieger Jan 2001

Influence Of Low-Level Fall Supplementation With A Self-Fed, High-Protein Supplement And Level Of Winter Supplementation On Performance Of Beef Cows Grazing Tallgrass-Prairie Range (2001), T.A. Wickersham, R.C. Cochran, D.V. Dhuyvetter, C.G. Farmer, David M. Grieger

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the effect of providing a small amount of a high-protein supplement during the fall and effects of increasing subsequent level of winter supplementation on cow-calf performance. One hundred-sixty spring-calving Hereford x Angus cows grazing tallgrassprairie range were used. During the fall, cows either had access to a self-fed, highprotein supplement (30% CP) or were not supplemented. During the winter, range cubes (20% CP) were fed at a daily equivalent of 1, 2, 3, or 4 lb/head and all cows had access to the same self-fed supplement used during the fall period. Cumulative performance (as …

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Impact Of Dairy Manure Addition On Soil Nutrients In Northeast And South Central Kansas (2001), T. Strahm, Joseph P. Harner, James P. Murphy, G. Mccormack Jan 2001

Impact Of Dairy Manure Addition On Soil Nutrients In Northeast And South Central Kansas (2001), T. Strahm, Joseph P. Harner, James P. Murphy, G. Mccormack

Kansas Agricultural Experiment Station Research Reports

Sixty four percent of the fields (14 of 22) in northeast and south central Kansas would be able to apply dairy manure on a nitrogen basis if the current swine manure application regulations were adopted. Due to high phosphorus levels in some fields, two of the 11 fields in northeast Kansas could not have any manure applied to them. Two other fields in northeast and four fields in south central Kansas would have to limit manure application rates to annual phosphorus required by the crops. Our results indicate minimal accumulation of nitrogen and potassium in the soil profile.; Dairy Day, …

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Comparison Of International Protein Corporation 740 Fish Meal And Special Select™ Menhaden Fish Meal In Nursery Pig Diets (2001), M G. Young, M Cici, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2001

Comparison Of International Protein Corporation 740 Fish Meal And Special Select™ Menhaden Fish Meal In Nursery Pig Diets (2001), M G. Young, M Cici, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

One hundred and seventy five pigs (initially weighing 14.1 lb and 17 + 2 d of age) were used in a 21-d growth assay to compare performance of pigs fed two sources of Menhaden fish meal. Overall, there was no difference in growth performance between the two fish meal sources. For the first 14 days ADG and F/G were improved by including fish meal in the diet and as the level increased from 2.5 to 5%. However, in the third week (day 14 to 21) of the trial there was no benefit in adding fish meal to the diet. These …

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The Influence Of Dietary Energy Level On The Response To Betaine (2001), M G. Young, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2001

The Influence Of Dietary Energy Level On The Response To Betaine (2001), M G. Young, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 800 pigs were used to evaluate the influence of dietary energy level on the response to betaine in finishing pig diets. Dietary treatments were arranged in a 2 × 2 factorial with or without betaine and two energy density levels as the main effects. No betaine × energy interactions (P>0.05) were observed for the entire feeding period (51 to 210 lb) or for any of the three dietary phases. Pigs fed the high energy diets with added fat had (P<.05) greater ADG, lower ADFI, and improved F/G compared with pigs fed the low energy diets without added fat. Adding betaine to the diet had no influence on pig performance.; Swine Day, Manhattan, KS, November 15, 2001

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Nutrient Composition Of Kansas Swine Lagoons And Hoop Barn Manure (2001), Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, James P. Murphy, Robert D. Goodband, Steven S. Dritz Jan 2001

Nutrient Composition Of Kansas Swine Lagoons And Hoop Barn Manure (2001), Joel M. Derouchey, Jim L. Nelssen, Michael D. Tokach, James P. Murphy, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 236 lagoon and 35 hoop barn manure samples were collected during 2000 from Kansas swine operations to determine the effects of production phase and season of the year on their nutrient concentration. Lagoon analyses revealed that nitrogen concentrations were lower during the summer and fall seasons compared to winter and early spring. In addition, levels of nitrogen were highest in nursery, wean to finish, and finishing lagoons compared with sow and farrow-to-finish lagoons. Phosphorus levels for all lagoons increased from February until June, but then declined steadily throughout the remainder of the year. The concentration of phosphorus …

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Comparison Of Bioaerosol Sampling Methods For Swine Barns (2001), B Z. Predicala, J E. Urban, S B. Jerez, Ronaldo G. Maghirang, Robert D. Goodband Jan 2001

Comparison Of Bioaerosol Sampling Methods For Swine Barns (2001), B Z. Predicala, J E. Urban, S B. Jerez, Ronaldo G. Maghirang, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Two bioaerosol sampling methods (Andersen sampler and filtration sampler) were compared. The two samplers were used to assess the bioaerosol loads in two swine finishing barns. They were similar in terms of the species of microorganisms sampled. The persistent strains of microorganisms were various species of the following genera: Staphylococcus, Pseudomonas, Bacillus, Listeria, Enterococcus, Nocardia, Lactobacillus, and Penicillium. However, the use of Andersen sampler resulted in significantly higher bioaerosol concentrations than the filtration sampler. Thus, it appears that filtration sampling can be used for a qualitative survey of bioaerosols in swine barns while the Andersen sampler is suitable for both …

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Evaluation Of Different Copper Sources As A Growth Promoter In Swine Finishing Diets (2001), C W. Hastad, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz Jan 2001

Evaluation Of Different Copper Sources As A Growth Promoter In Swine Finishing Diets (2001), C W. Hastad, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to determine the effects of added copper from copper sulfate or copper chloride on performance of growing-finishing pigs. A total of 2,277 pigs with an initial weight of 71.6 lb were used in a commercial research facility in southwest Minnesota. Adding copper to the diet improved performance during the first two weeks in the finishing barn regardless of copper source or level. The results of these experiments indicate that low levels of copper chloride or copper sulfate (50 to 100 ppm) can be an effective and economical growth promoter when fed for the first two weeks …

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Comparison Of Yellow Dent And Nutridense Corn Hybrids For Nursery Pig Diets, C W. Hastad, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2001

Comparison Of Yellow Dent And Nutridense Corn Hybrids For Nursery Pig Diets, C W. Hastad, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 315 nursery pigs (initially 33.5 lb) were used in a 21-d growth assay to compare relative energy values of Nutridense™ and Nutridense Low Phytate™ corn compared to Yellow Dent corn. Dietary treatments consisted of a 3 × 3 factorial with three sources of corn with 0, 3, or 6% added fat. Increasing the energy density of the diet with added fat or higher energy corn varieties (Nutridense or Nutridense-LP corn) linearly improved feed efficiency. The linear improvement in feed efficiency allowed us to calculate the energy content of the Nutridense corn varieties relative to Yellow Dent corn. …

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Effects Of A Direct Fed Microbial (Dmf-4) And In-Feed Antimicrobials On Pig Performance In A Commercial Finishing Facility (2001), R G. Main, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 2001

Effects Of A Direct Fed Microbial (Dmf-4) And In-Feed Antimicrobials On Pig Performance In A Commercial Finishing Facility (2001), R G. Main, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,000 barrows were used in a 98-day trial conducted in a commercial research facility to determine the influence of a direct fed microbial with and without intermittent treatments of oxytetracycline (OTC) at 400 g/ton. The direct fed microbial was compared to a negative (no feed antimicrobial) and positive control (bacitracin methylene diasalicylate (BMD) at 30 g/ton, alternated with intermittent treatments of OTC at 400 g/ton). No significant differences between the four treatments were observed for any of the growth, efficiency, or carcass parameters evaluated. These results suggest that further work in quantifying the effects of routinely utilizing …

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Effects Of Feeding Graded Levels Of Ractopamine (Paylean Tm) On Pig Performance In A Commercial Finishing Facility (2001), R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2001

Effects Of Feeding Graded Levels Of Ractopamine (Paylean Tm) On Pig Performance In A Commercial Finishing Facility (2001), R G. Main, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 880 pigs were used in a 21-day trial conducted in a commercial research facility to determine the influence of feeding graded levels (0, 4.5, 6.75, and 9.0 g/ton) of ractopamine HCl (PayleanTM, Elanco Animal Health) on pig performance and carcass composition. Ractopamine supplementation improved ADG 17 to 22% and F/G 12 to 20%. Increasing ractopamine dosages resulted in improved F/G, but similar ADG. With the exception of a tendency to increase yield, carcass parameters were not different among treatments. Ractopamine supplementation resulted in improved economic returns ($2.55 to $3.20/pig), which were due to the improvements in carcass …

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Utilizing Infrared Thermography To Predict Pork Quality (2001), T E. Lawrence, M F. Spire, Michael E. Dikeman, Melvin C. Hunt, S B. Hogge, B W. James Jan 2001

Utilizing Infrared Thermography To Predict Pork Quality (2001), T E. Lawrence, M F. Spire, Michael E. Dikeman, Melvin C. Hunt, S B. Hogge, B W. James

Kansas Agricultural Experiment Station Research Reports

Three experiments using 63 pigs were conducted to determine if infrared thermography could segregate pigs based on subsequent pork quality. Pigs were subjectively classified as either "hot" or "normal" based on infrared surface temperature of the loin region prior to slaughter. In the first experiment 18 market weight pigs were transported, imaged by infrared thermography and slaughtered immediately after 1 to 4 h of lairage. Differences in meat quality were detected; hot pigs had lower a* (less red) and chroma (less intense red color) values, and higher hue angle (less red/more yellow) values, all of which indicate paler muscle color. …

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Interactive Effects Between Paylean™ (Ractopamine Hcl) And Dietary Lysine On Finishing Pig Growth Performance, Carcass Characteristics And Tissue Accretion (2001), M J. Webster, Robert D. Goodband, D E. Real, J C. Woodworth, T A. Marsteller, Michael D. Tokach, John A. Unruh, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2001

Interactive Effects Between Paylean™ (Ractopamine Hcl) And Dietary Lysine On Finishing Pig Growth Performance, Carcass Characteristics And Tissue Accretion (2001), M J. Webster, Robert D. Goodband, D E. Real, J C. Woodworth, T A. Marsteller, Michael D. Tokach, John A. Unruh, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 432 pigs were used to evaluate the effects of Paylean and dietary lysine on finishing pig growth performance, carcass characteristics and tissue accretion. The 12 dietary treatments included Paylean (0, 4.5, and 9.0 g/ton) and 4 levels of lysine. For pigs fed no Paylean, lysine levels were 0.60, 0.80, 1.00, and 1.20%. For pigs fed 4.5 or 9.0 g/ton of Paylean, lysine levels were 0.80, 1.00, 1.20, and 1.40%. The results indicate that pigs fed Paylean need at least 1.0% dietary lysine to optimize growth, carcass parameters, and tissue accretion.; Swine Day, Manhattan, KS, November 15, 2001

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Interactive Effects Between Paylean™ (Ractopamine Hcl) And Dietary Lysine On Pork Quality, Loin, Belly, And Ham Composition (2001), M J. Webster, D E. Real, J C. Woodworth, T A. Marsteller, Robert D. Goodband, Michael D. Tokach, John A. Unruh, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2001

Interactive Effects Between Paylean™ (Ractopamine Hcl) And Dietary Lysine On Pork Quality, Loin, Belly, And Ham Composition (2001), M J. Webster, D E. Real, J C. Woodworth, T A. Marsteller, Robert D. Goodband, Michael D. Tokach, John A. Unruh, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 432 pigs were used to evaluate the effects of Paylean and dietary lysine on pork quality and loin, belly, and ham composition. The 12 dietary treatments included Paylean (0, 4.5, and 9.0 g/ton) and 4 levels of lysine. For pigs fed no Paylean, lysine levels were 0.60, 0.80, 1.00, and 1.20%. For pigs fed 4.5 or 9.0 g/ton of Paylean, lysine levels were 0.80, 1.00, 1.20, and 1.40%. The results indicate that pigs fed Paylean and increasing levels of lysine will have less loin marbling and belly firmness compared to control pigs fed lower levels of lysine.; …

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